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Step * of Lemma geo-length-null-segment

∀[e:BasicGeometry]. ∀[a:Point].  (|aa| = X ∈ Length)
BY
{ (Auto THEN EqTypeCD THEN Auto) }

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Latex:

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Latex:
\mforall{}[e:BasicGeometry].  \mforall{}[a:Point].    (|aa|  =  X)


By

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Latex:
(Auto  THEN  EqTypeCD  THEN  Auto)

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